src/mac/checklst.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        checklst.cpp
   3 // Purpose:     implementation of wxCheckListBox class
   4 // Author:      AUTHOR
   5 // Modified by:
   6 // Created:     ??/??/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) AUTHOR
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // headers & declarations
  14 // ============================================================================
  15
  16 #ifdef __GNUG__
  17 #pragma implementation "checklst.h"
  18 #endif
  19
  20 #include "wx/defs.h"
  21
  22 #if wxUSE_CHECKLISTBOX
  23
  24 #include "wx/checklst.h"
  25
  26 #include "wx/mac/uma.h"
  27 #include "Appearance.h"
  28
  29 // ============================================================================
  30 // implementation of wxCheckListBox
  31 // ============================================================================
  32
  33 IMPLEMENT_DYNAMIC_CLASS(wxCheckListBox, wxListBox)
  34
  35 const short kwxMacListWithVerticalScrollbar = 128 ;
  36 const short kwxMacListItemHeight = 14 ;
  37 const short kwxMacListCheckboxWidth = 14 ;
  38
  39 typedef struct {
  40  unsigned short instruction;
  41  void (*function)();
  42 } ldefRec, *ldefPtr, **ldefHandle;
  43
  44 extern "C"
  45 {
  46 static pascal void wxMacCheckListDefinition( short message, Boolean isSelected, Rect *drawRect,
  47                                      Cell cell, short dataOffset, short dataLength,
  48                                      ListHandle listHandle ) ;
  49 }
  50
  51 static pascal void wxMacCheckListDefinition( short message, Boolean isSelected, Rect *drawRect,
  52                                      Cell cell, short dataOffset, short dataLength,
  53                                      ListHandle listHandle )
  54 {
  55     GrafPtr savePort;
  56     GrafPtr grafPtr;
  57     RgnHandle savedClipRegion;
  58     SInt32 savedPenMode;
  59     wxCheckListBox*          list;
  60   GetPort(&savePort);
  61   SetPort((**listHandle).port);
  62   grafPtr = (**listHandle).port ;
  63     // typecast our refCon
  64     list = (wxCheckListBox*) GetControlReference( (ControlHandle) GetListRefCon(listHandle) );
  65
  66     //  Calculate the cell rect.
  67
  68     switch( message ) {
  69         case lInitMsg:
  70             break;
  71
  72         case lCloseMsg:
  73             break;
  74
  75         case lDrawMsg:
  76         {
  77             const wxString text = list->m_stringArray[cell.v] ;
  78             int checked = list->m_checks[cell.v] ;
  79
  80             //  Save the current clip region, and set the clip region to the area we are about
  81             //  to draw.
  82
  83             savedClipRegion = NewRgn();
  84             GetClip( savedClipRegion );
  85
  86             ClipRect( drawRect );
  87             EraseRect( drawRect );
  88
  89             ::TextFont( kFontIDMonaco ) ;
  90             ::TextSize( 9  );
  91             ::TextFace( 0 ) ;
  92             ThemeButtonDrawInfo info ;
  93             info.state = kThemeStateActive ;
  94             info.value = checked ? kThemeButtonOn : kThemeButtonOff ;
  95             info.adornment = kThemeAdornmentNone ;
  96             Rect checkRect = *drawRect ;
  97             checkRect.left +=0 ;
  98             checkRect.top +=2 ;
  99             checkRect.right = checkRect.left + 12 ;
 100             checkRect.bottom = checkRect.top + 10 ;
 101             DrawThemeButton(&checkRect,kThemeCheckBox,
 102               &info,NULL,NULL, NULL,0);
 103
 104         MoveTo(drawRect->left + 4 + kwxMacListCheckboxWidth, drawRect->top + 10 );
 105
 106         DrawText(text, 0 , text.Length());
 107             //  If the cell is hilited, do the hilite now. Paint the cell contents with the
 108             //  appropriate QuickDraw transform mode.
 109
 110             if( isSelected ) {
 111                 savedPenMode = GetPortPenMode( (CGrafPtr) grafPtr );
 112                 SetPortPenMode( (CGrafPtr) grafPtr, hilitetransfermode );
 113                 PaintRect( drawRect );
 114                 SetPortPenMode( (CGrafPtr) grafPtr, savedPenMode );
 115             }
 116
 117             //  Restore the saved clip region.
 118
 119             SetClip( savedClipRegion );
 120             DisposeRgn( savedClipRegion );
 121             }
 122             break;
 123         case lHiliteMsg:
 124
 125             //  Hilite or unhilite the cell. Paint the cell contents with the
 126             //  appropriate QuickDraw transform mode.
 127
 128             GetPort( &grafPtr );
 129             savedPenMode = GetPortPenMode( (CGrafPtr) grafPtr );
 130             SetPortPenMode( (CGrafPtr) grafPtr, hilitetransfermode );
 131             PaintRect( drawRect );
 132             SetPortPenMode( (CGrafPtr) grafPtr, savedPenMode );
 133             break;
 134         default :
 135           break ;
 136     }
 137     SetPort(savePort);
 138 }
 139
 140 extern "C" void MacDrawStringCell(Rect *cellRect, Cell lCell, ListHandle theList, long refCon) ;
 141
 142 static ListDefUPP macCheckListDefUPP = NULL ;
 143
 144 // ----------------------------------------------------------------------------
 145 // creation
 146 // ----------------------------------------------------------------------------
 147
 148 void wxCheckListBox::Init()
 149 {
 150 }
 151
 152 bool wxCheckListBox::Create(wxWindow *parent,
 153                             wxWindowID id,
 154                             const wxPoint &pos,
 155                             const wxSize &size,
 156                             int n,
 157                             const wxString choices[],
 158                             long style,
 159                             const wxValidator& validator,
 160                             const wxString &name)
 161 {
 162     m_noItems = 0 ; // this will be increased by our append command
 163     m_selected = 0;
 164
 165     Rect bounds ;
 166     Str255 title ;
 167
 168     MacPreControlCreate( parent , id ,  "" , pos , size ,style, validator , name , &bounds , title ) ;
 169
 170     ListDefSpec listDef;
 171     listDef.defType = kListDefUserProcType;
 172     if ( macCheckListDefUPP == NULL )
 173     {
 174       macCheckListDefUPP = NewListDefUPP( wxMacCheckListDefinition );
 175     }
 176         listDef.u.userProc = macCheckListDefUPP ;
 177
 178 #if TARGET_CARBON
 179     Size asize;
 180
 181
 182     CreateListBoxControl( MAC_WXHWND(parent->MacGetRootWindow()), &bounds, false, 0, 1, false, true,
 183                           14, 14, false, &listDef, (ControlRef *)&m_macControl );
 184
 185     GetControlData( (ControlHandle) m_macControl, kControlNoPart, kControlListBoxListHandleTag,
 186                    sizeof(ListHandle), (Ptr) &m_macList, &asize);
 187
 188     SetControlReference( (ControlHandle) m_macControl, (long) this);
 189     SetControlVisibility( (ControlHandle) m_macControl, false, false);
 190
 191 #else
 192
 193     long    result ;
 194
 195     m_macControl = ::NewControl( MAC_WXHWND(parent->MacGetRootWindow()) , &bounds , title , false ,
 196                   kwxMacListWithVerticalScrollbar , 0 , 0,
 197                   kControlListBoxProc , (long) this ) ;
 198     ::GetControlData( (ControlHandle) m_macControl , kControlNoPart , kControlListBoxListHandleTag ,
 199                sizeof( ListHandle ) , (char*) &m_macList  , &result ) ;
 200
 201     HLock( (Handle) m_macList ) ;
 202     ldefHandle ldef ;
 203     ldef = (ldefHandle) NewHandle( sizeof(ldefRec) ) ;
 204     if (  (**(ListHandle)m_macList).listDefProc != NULL )
 205     {
 206       (**ldef).instruction = 0x4EF9;  /* JMP instruction */
 207       (**ldef).function = (void(*)()) listDef.u.userProc;
 208       (**(ListHandle)m_macList).listDefProc = (Handle) ldef ;
 209     }
 210
 211     Point pt = (**(ListHandle)m_macList).cellSize ;
 212     pt.v = 14 ;
 213     LCellSize( pt , (ListHandle)m_macList ) ;
 214     LAddColumn( 1 , 0 , (ListHandle)m_macList ) ;
 215 #endif
 216     OptionBits  options = 0;
 217     if ( style & wxLB_MULTIPLE )
 218     {
 219         options += lNoExtend ;
 220     }
 221     else if ( style & wxLB_EXTENDED )
 222     {
 223         options += lExtendDrag ;
 224     }
 225     else
 226     {
 227         options = lOnlyOne ;
 228     }
 229     SetListSelectionFlags((ListHandle)m_macList, options);
 230
 231     MacPostControlCreate() ;
 232
 233     for ( int i = 0 ; i < n ; i++ )
 234     {
 235         Append( choices[i] ) ;
 236     }
 237
 238     LSetDrawingMode( true , (ListHandle) m_macList ) ;
 239
 240     return TRUE;
 241 }
 242
 243 // ----------------------------------------------------------------------------
 244 // wxCheckListBox functions
 245 // ----------------------------------------------------------------------------
 246
 247 bool wxCheckListBox::IsChecked(size_t item) const
 248 {
 249     wxCHECK_MSG( item < m_checks.GetCount(), FALSE,
 250                  _T("invalid index in wxCheckListBox::IsChecked") );
 251
 252     return m_checks[item] != 0;
 253 }
 254
 255 void wxCheckListBox::Check(size_t item, bool check)
 256 {
 257     wxCHECK_RET( item < m_checks.GetCount(),
 258                  _T("invalid index in wxCheckListBox::Check") );
 259
 260     // intermediate var is needed to avoid compiler warning with VC++
 261     bool isChecked = m_checks[item] != 0;
 262     if ( check != isChecked )
 263     {
 264         m_checks[item] = check;
 265
 266         MacRedrawControl() ;
 267     }
 268 }
 269
 270 // ----------------------------------------------------------------------------
 271 // methods forwarded to wxListBox
 272 // ----------------------------------------------------------------------------
 273
 274 void wxCheckListBox::Delete(int n)
 275 {
 276     wxCHECK_RET( n < GetCount(), _T("invalid index in wxListBox::Delete") );
 277
 278     wxListBox::Delete(n);
 279
 280     m_checks.RemoveAt(n);
 281 }
 282
 283 int wxCheckListBox::DoAppend(const wxString& item)
 284 {
 285     int pos = wxListBox::DoAppend(item);
 286
 287     // the item is initially unchecked
 288     m_checks.Insert(FALSE, pos);
 289
 290     return pos;
 291 }
 292
 293 void wxCheckListBox::DoInsertItems(const wxArrayString& items, int pos)
 294 {
 295     wxListBox::DoInsertItems(items, pos);
 296
 297     size_t count = items.GetCount();
 298     for ( size_t n = 0; n < count; n++ )
 299     {
 300         m_checks.Insert(FALSE, pos + n);
 301     }
 302 }
 303
 304 void wxCheckListBox::DoSetItems(const wxArrayString& items, void **clientData)
 305 {
 306     // call it first as it does DoClear()
 307     wxListBox::DoSetItems(items, clientData);
 308
 309     size_t count = items.GetCount();
 310     for ( size_t n = 0; n < count; n++ )
 311     {
 312         m_checks.Add(FALSE);
 313     }
 314 }
 315
 316 void wxCheckListBox::DoClear()
 317 {
 318     m_checks.Empty();
 319 }
 320
 321 BEGIN_EVENT_TABLE(wxCheckListBox, wxListBox)
 322   EVT_CHAR(wxCheckListBox::OnChar)
 323   EVT_LEFT_DOWN(wxCheckListBox::OnLeftClick)
 324 END_EVENT_TABLE()
 325
 326 // this will only work as soon as
 327
 328 void wxCheckListBox::OnChar(wxKeyEvent& event)
 329 {
 330   if ( event.KeyCode() == WXK_SPACE )
 331   {
 332     int index = GetSelection() ;
 333     if ( index >= 0 )
 334     {
 335       Check(index, !IsChecked(index) ) ;
 336       wxCommandEvent event(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, GetId());
 337       event.SetInt(index);
 338       event.SetEventObject(this);
 339       GetEventHandler()->ProcessEvent(event);
 340     }
 341   }
 342   else
 343     event.Skip();
 344 }
 345
 346 void wxCheckListBox::OnLeftClick(wxMouseEvent& event)
 347 {
 348   // clicking on the item selects it, clicking on the checkmark toggles
 349   if ( event.GetX() <= 20 /*check width*/ ) {
 350     int lineheight ;
 351     int topcell ;
 352 #if TARGET_CARBON
 353     Point pt ;
 354     GetListCellSize( (ListHandle)m_macList , &pt ) ;
 355     lineheight = pt.v ;
 356     ListBounds visible ;
 357     GetListVisibleCells( (ListHandle)m_macList , &visible ) ;
 358     topcell = visible.top ;
 359 #else
 360     lineheight =  (**(ListHandle)m_macList).cellSize.v ;
 361     topcell = (**(ListHandle)m_macList).visible.top ;
 362 #endif
 363     size_t nItem = ((size_t)event.GetY()) / lineheight + topcell ;
 364
 365     if ( nItem < (size_t)m_noItems )
 366     {
 367       Check(nItem, !IsChecked(nItem) ) ;
 368       wxCommandEvent event(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, GetId());
 369       event.SetInt(nItem);
 370       event.SetEventObject(this);
 371       GetEventHandler()->ProcessEvent(event);
 372     }
 373     //else: it's not an error, just click outside of client zone
 374   }
 375   else {
 376     // implement default behaviour: clicking on the item selects it
 377     event.Skip();
 378   }
 379 }
 380
 381 #endif // wxUSE_CHECKLISTBOX